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Wiseman, Frances K; Al-Janabi, Tamara; Hardy, John; Karmiloff-Smith, Annette; Nizetic, Dean; Tybulewicz, Victor L J; Fisher, Elizabeth M C; Strydom, André
Nature reviews. Neuroscience, 09/2015, Letnik: 16, Številka: 9Journal Article
Down syndrome, which arises in individuals carrying an extra copy of chromosome 21, is associated with a greatly increased risk of early-onset Alzheimer disease. It is thought that this risk is conferred by the presence of three copies of the gene encoding amyloid precursor protein (APP)--an Alzheimer disease risk factor--although the possession of extra copies of other chromosome 21 genes may also play a part. Further study of the mechanisms underlying the development of Alzheimer disease in people with Down syndrome could provide insights into the mechanisms that cause dementia in the general population.
